Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20321320 found under Transformer Radio F by Bae Systems Information And Electronic Systems Integration I. The National Stock Number assigned to this part is 5950002547498, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20321320.